Hydrotalcite intercalation chloride ion probe modified s-triazole cyclic triazole containing corrosion inhibitor compound and application thereof

A chloride ion probe, azole ring triazole technology, applied in the field of rust inhibitors, can solve the problems of high efficiency, which is only on paper, weaken the application stability and long-term durability of rust inhibitors, and achieve excellent resistance. The effect of rust performance, low comprehensive application cost, and simple preparation method

Inactive Publication Date: 2018-05-01
INST OF OCEANOLOGY - CHINESE ACAD OF SCI
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Problems solved by technology

[0003] The traditional research and development ideas of rust inhibitors are limited to the isolation and protection of the surface of steel bars, but have not yet focused on the treatment of corrosive media and the adaptation to the concrete body environment, which seriously weakens the application stability and long-term durability of rust inhibitors. , so that the performance of high efficiency is on paper

Method used

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  • Hydrotalcite intercalation chloride ion probe modified s-triazole cyclic triazole containing corrosion inhibitor compound and application thereof

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Experimental program
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Effect test

Embodiment

[0036] Preparation of Triazole Corrosion Inhibitor Complex Modified by Hydrotalcite Intercalation Chloride Ion Probe

[0037] The first step: prepare the triazole precursor modified by chloride ion probe.

[0038] Press p-aminobenzoic acid in [N + -H...O] molar stoichiometric ratio of hydrogen bond formation by adding 1-benzylideneimino-2-mercapto-5-(1'-(1',2',4'-triazole))methylene In aqueous solution of 1,3,4-triazole polyether rust inhibitor (2.4×10 -3 mol / L), using 2.2 equivalents of HBr for protonation titration to prepare the intercalation precursor of triazole rust inhibitor containing s-triazole ring modified by chloride ion probe.

[0039] The second step: the reaction formula of synthesizing zinc-aluminum hydrotalcite is as follows:

[0040] Zn(NO 3 ) 2 ·6H 2 O+2NaOH=Zn(OH) 2 ↓+2NaNO 3 +6H 2 O (1)

[0041] Al(NO 3 ) 3 9H 2 O+3NaOH=Al(OH) 3 ↓+3NaNO 3 +9H 2 O (2)

[0042] 0.67Zn(OH) 2 +0.33Al(OH) 3 +mH 2 O+0.165Na 2 CO 3 =[Zn 0.67 Al 0.33 (OH) ...

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Abstract

The invention relates to a corrosion inhibitor, and particularly speaking, discloses a hydrotalcite intercalation chloride ion probe modified s-triazole cyclic triazole containing corrosion inhibitorcompound and application thereof. Through chloride ion probe modification and intercalation assembly, a chloride ion trigger switch capable of regulating and controlling the release of an s-triazole cyclic triazole containing corrosion inhibitor is embedded between layers of zinc-aluminum hydrotalcite, so as to form the compound. The mass production can be realized by adopting the corrosion inhibitor compound provided by the invention; the release in response to a corrosive environment and the repair of already rusted carbon steel can be achieved; moreover, a long-time protection effect can beactualized; the corrosion prevention can be effectively carried out on carbon steel, and the corrosion inhibitor compound has obvious application value and a wide market prospect.

Description

technical field [0001] The invention relates to a rust inhibitor, in particular to a hydrotalcite intercalation chlorine ion probe modified triazole rust inhibitor compound containing a s-triazole ring and an application thereof. Background technique [0002] Reinforced concrete is the main material of coastal and offshore engineering construction. Under the marine corrosion environment, the corrosion of steel bars caused by the diffusion and penetration of high-concentration chloride ions is the crux of the degradation of concrete materials and structural performance. The application of organic migrating corrosion inhibitor (Migrating Corrosion Inhibitor, MCI) as a simple, economical and efficient steel anticorrosion material is the first choice for isolating chloride ion corrosion. [0003] The traditional research and development ideas of rust inhibitors are limited to the isolation and protection of the surface of steel bars, but have not yet focused on the treatment of ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C01G9/00C04B24/12C04B103/61
CPCC01G9/003C04B24/128C04B2103/61
Inventor 田惠文李伟华刘昂侯保荣
Owner INST OF OCEANOLOGY - CHINESE ACAD OF SCI
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